This page summarises the information held within TEPCat for the transiting planetary system Kepler-439b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2015ApJ...800...99T | |
| Date of discovery paper | 2015 / 1 / 7 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 18 43 12.38 | h m s |
| Declination | +44 02 02.4 | d m s |
| Right ascension (decimal) | 280.80158 | degrees |
| Declination (decimal) | 44.03400 | degrees |
| V-band apparent magnitude | 14.73 | mag |
| K-band apparent magnitude | 12.92 | mag |
| Transit duration | 0.400 ( 9.60 ) | day hour |
| Transit depth | 0.07 | % |
| Time of mid-transit | 2455399.3987 ± 0.0039 | HJD or BJD |
| Orbital period | 178.1396 ± 0.0016 | days |
| Reference for orbital ephemeris | 2015ApJ...800...99T |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5431 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.02 ± 0.10 | dex |
| Stellar mass | 0.884 +0.044 −0.038 | Msun |
| Stellar radius | 0.866 +0.076 −0.040 | Rsun |
| Stellar logarithmic surface gravity | 4.514 +0.035 −0.073 | c.g.s. |
| Stellar mean density | 1.34 +0.21 −0.27 ( 1.89 +0.30 −0.38 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.03 +0.08 −0.03 | |
| Orbital semimajor axis | 0.563 +0.165 −0.080 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.200 +0.014 −0.040 ( 2.24 +0.16 −0.45 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2015ApJ...800...99T |
Kepler-439b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/11/11 John Southworth (Keele University, UK)